⁠Chapter 3. What's New?

3.1. Infrastructure Features
3.2. Networking Features
3.3. Storage Features
3.4. Virtualization Features
3.5. Service Level Agreements and Scheduling
3.6. User Experience Enhancements

⁠3.1. Infrastructure Features

SNMP Traps

Red Hat Enterprise Virtualization Manager SNMP traps extend events notifier capabilities and enable Red Hat Enterprise Virtualization to generate SNMP traps out of system events to integrate Red Hat Enterprise Virtualization with generic monitoring systems.

Authentication and Directory Rewrites

The authentication and directory functionality of Red Hat Enterprise Virtualization has been enhanced and allows for the reimplementation of authentication and directory support.

rhevm-reports admin user is now 'rhevm-admin' after upgrades - BZ#1073579

In clean installations of Red Hat Enterprise Virtualization 3.4.0, the admin user is called 'admin'.

In upgrades from earlier versions of Red Hat Enterprise Virtualization, the admin user remains 'rhevm-admin'. The 'admin' user is not activated.

Non-root users now have Access to the Logging Directory - BZ#1083411

Previously, non-root users did not have access to the default RHEVM logging directory, so the engine-manage-domains execution failed.

Now, logging is not enabled by default. To allow logging, you must specify following command-line arguments:

--log-file=LOG_FILE

This argument specifies the file to write logging into (if undefined, nothing is logged).

--log-level=LOG_LEVEL

This argument sets the log level: DEBUG, INFO, WARN, ERROR (case insensitive).

--log4j-config=XML_FILE

This argument sets the log4j.xml file, from which logging configuration is loaded. Use this only if the user intends to custom configure logging. This is not required for either --log-file or --log-level arguments, but it can be combined with them.

OVF file descriptor data in API - BZ#1060575

The REST API now provides OVF file descriptor data for the active VM.

Upgrading from 6.4 to 6.5 improved - BZ#1023898

Previously, upgrades from version 6.4 to 6.5 did not migrate across some of the existing configurations. The codebase in 6.5 did not show values in the TUI database if the values had been configured previously, because it relied on the presence of keys in /etc/default/ovirt directory to populate fields, and the 6.4 TUI did not set these values. Previously configured services continued to work, but their configurations could not be seen in the TUI. To fix this, 6.5 includes a migration script that checks the configuration files and adds keys to /etc/default/ovirt if necessary.

New Installer based on the TUI Codebase - BZ#911400

A new installer based on the codebase of the TUI (textual user interface) is introduced in Red Hat Enterprise Virtualization 3.4. The new codebase is more flexible and supports response to screen resize requests and mouse input. The installer has been migrated to the new TUI codebase.

IPv6 support added - BZ#811327

Red Hat Enterprise Virtualization Manager now supports IPv6 (Internet Protocol version 6). IPv6 functionality is now exposed in the TUI. The NIC (network interface controller) can now get IPv6 addresses. IPv6 support is available in rhev-hypervisor6-6.5-20131017.0.iso.

Hot-Plugging CPU Support - BZ#833102

RHEV now supports hot-plugging vCPUs into running guests to increase computing capacity. At this time, RHEV only supports the ability to add vCPUs, and does not yet provide support for hot-unplugging.

Note

Users must ensure that their guest operating system supports hot-plugging CPU capabilities.

Native Client and noVNC Support - BZ#1057994

Configure Default VNC Console Mode

It is now possible to configure the default console mode for a VM by selecting either Native Client or noVNC.

Edit Virtual Machines while running - BZ#962585

It is now possible to edit the following fields in the VM window while the VM is running and without requiring a reboot.

- Operating System
- Optimized for

/General/
- Name
- Description
- Comment
- Delete Protection
- network interfaces (add only)

/Initial Run/
- Use Cloud-Init/Sysprep (incl. all relevant fields)

/Host/
- Use custom migration downtime

/High Availability/
- Highly Available
- Priority for Run/Migration queue
- Watchdog Model
- Watchdog Action

/Resource Allocation/
- Physical Memory Guaranteed
- Memory Balloon Device Enabled

/Boot Options/
- First Device
- Second Device
- Attach CD
- kernel path
- initrd path
- kernel parameters

Search by Description - BZ#526471

It is now possible to search for Datacenter, Cluster, Networks, Storage, Disks, Virtual Machines, Pools, and Templates based on the description value set within RHEV Manager.

Datacenter: description = "my description"

Emit Events on Remote Console Connect/Disconnect - BZ#1020408

RHEV Manager now emits events when a user connects or disconnects from a VM console session.

RHEL 7 Support - BZ#1077779

Red Hat Enterprise Linux 7 is now supported as a guest operating system.

Enable/Disable KSM at a Cluster Level - BZ#1026980

In versions 3.3 and higher, Red Hat Enterprise Virtualization no longer uses ksmtuned to directly control KSM (Kernel Samepage Merging) configurations on hypervisor nodes. MOM (Memory Overcommit Manager) is used in Red Hat Enterprise Virtualization 3.3 and higher to control KSM configurations on hypervisor nodes. There is now a UI option to instruct MOM to enable or disable KSM for all hosts contained within a specific cluster.

Reboot Option for virtual machines - BZ#587774

It is now possible to initiate a reboot of a VM from within the RHEVM Admin and User interfaces.

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